All names: WDJ153505.81+124745.20, SDSS J153505.75+124744.2, G 137-24, LSPM J1535+1247, USNO-B1.0 1027-00313398, Gaia DR2 1193630377165571584, WD 1532+129, GEN# +9.80137024, 2MASS J15350582+1247452, SDSS J153505.75+124744.1, PSO J153505.673+124742.947, UCAC2 36307924, NLTT 40607, WD 1532+12
| Parameter | Unit | Blouin 2020 | Pan-STARRS DR1 | Gaia DR2 | Hollands et al. 2017 | Koester et al. 2011 | SDSS DR12 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 35 05.63 (0.04) | 15 35 05.75 | 15 35 05.81 | 15 35 05.63 | 15 35 05.50 | |||||
| Declination | 12 47 42.41 (0.03) | 12 47 44.16 | 12 47 45.14 | 12 47 42.41 | 12 47 39.48 | |||||
| Spectral type | DZ | DZ | DZ6.7 | |||||||
| Effective temperature | [K] | 5950.0 (66) | 5773.0 (50) | 6000.0 | ||||||
| log(g) | [cgs] | 8.18 (0.009) | 8.00 (0) | |||||||
| Mass | [M☉] | 0.682 (0.006) | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | 3.8000 | ||||||||
| log(H/He) | <-3.0 | |||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | -8.6 (0.1) | -8.61 | -8.8 | |||||||
| log(Ca/H) | ||||||||||
| log(N/He) | ||||||||||
| log(O/He) | ||||||||||
| log(Na/He) | -8.72 | -8.6 | ||||||||
| log(Mg/He) | -7.0 (0.1) | -7.36 | -7.3 | |||||||
| log(Al/He) | ||||||||||
| log(Si/He) | ||||||||||
| log(P/He) | ||||||||||
| log(S/He) | ||||||||||
| log(Cl/He) | ||||||||||
| log(Sc/He) | ||||||||||
| log(Ti/He) | -9.62 | -9.5 | ||||||||
| log(V/He) | ||||||||||
| log(Cr/He) | -9.25 | -9.1 | ||||||||
| log(Mn/He) | ||||||||||
| log(Fe/He) | -7.5 (0.1) | -7.57 | -7.6 | |||||||
| log(Co/He) | ||||||||||
| log(Ni/He) | -8.9 | |||||||||
| log(Cu/He) | ||||||||||
| log(Zn/He) | ||||||||||
| log(Ga/He) | ||||||||||
| log(Ge/He) | ||||||||||
| log(Sr/He) | ||||||||||
| Parallax | [mas] | 51.90 (0.06) | 51.90 (0.06) | |||||||
| Distance | [pc] | 19.26 (0.02) | 19.27 (0.02) | 19.40 (2) | 19.27 (0.02) | |||||
| Composition | He | He | ||||||||
| Proper motion (right ascension) | [mas/yr] | -165.5865592 (0.08) | -165.5865592 | |||||||
| Proper motion (declination) | [mas/yr] | -179.7052746 (0.08) | -179.7052746 | |||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | ||||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | 18.04 (0.02) | 18.04 (0.02) | 18.05 (0.02) | 18.03 (0.01) | 18.04 | 18.04 (0.01) | 18.05 | |||
| g magnitude | 15.98 (0.02) | 15.98 (0.02) | 15.98 (0.02) | 15.98 (0.003) | 15.99 | 15.98 (0.003) | 15.97 | |||
| r magnitude | 15.50 (0.02) | 15.50 (0.02) | 15.50 (0.02) | 15.50 (0.004) | 15.50 | 15.50 (0.003) | 15.49 | |||
| i magnitude | 15.45 (0.02) | 15.45 (0.02) | 15.45 (0.02) | 15.44 (0.004) | 15.44 | 15.43 (0.003) | 15.44 | |||
| z magnitude | 15.50 (0.01) | 15.50 (0.01) | 15.50 (0.02) | 15.51 (0.006) | 15.51 | 15.50 (0.005) | 15.49 | |||
| G magnitude | 15.60 | 15.60 | ||||||||
| BP magnitude | 15.97 | 15.97 | ||||||||
| RP magnitude | 15.14 | 15.14 | ||||||||
| Pan g magnitude | 15.93 (0.006) | |||||||||
| Pan r magnitude | 15.51 (0.0005) | |||||||||
| Pan i magnitude | 15.47 (0.004) | |||||||||
| Pan z magnitude | 15.54 (0.007) | |||||||||
| Pan y magnitude | 15.55 (0.007) | |||||||||
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour at Université de Montréal. Please send database updates, corrections, suggestions or bug reports to dufourpa@astro.umontreal.ca.